/*
    Gtalk is a videoconference application on the Android Platform.

    Copyright (C) 2009 by Frederic-Charles Barthelery,
                          Jean-Manuel Da Silva,
                          Nikita Kozlov,
                          Philippe Lago,
                          Jean Baptiste Vergely,
                          Vincent Veronis.

    This file is part of Gtalk.

    Gtalk is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Gtalk is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Gtalk.  If not, see <http://www.gnu.org/licenses/>.

    Please send bug reports with examples or suggestions to
    contact@Gtalk-project.com or http://dev.Gtalk-project.com/

    Epitech, hereby disclaims all copyright interest in the program "Gtalk"
    written by Frederic-Charles Barthelery,
               Jean-Manuel Da Silva,
               Nikita Kozlov,
               Philippe Lago,
               Jean Baptiste Vergely,
               Vincent Veronis.

    Nicolas Sadirac, November 26, 2009
    President of Epitech.

    Flavien Astraud, November 26, 2009
    Head of the EIP Laboratory.

 */
package org.lansir.af.gtalk.utils;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.NetworkInfo.DetailedState;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.telephony.TelephonyManager;

/**
 * The Class GtalkConnectivity.
 */
public final class GtalkConnectivity {

	/**
	 * Private constructor to forbid instantiation.
	 */
	private GtalkConnectivity() {
	}

	/**
	 * Checks if is connected.
	 * 
	 * @param ctx
	 *            the ctx
	 * @return true, if is connected
	 */
	public static boolean isConnected(final Context ctx) {
		ConnectivityManager cm = (ConnectivityManager) ctx.getSystemService(Context.CONNECTIVITY_SERVICE);
		NetworkInfo ni = cm.getActiveNetworkInfo();
		return ni != null && ni.isConnected();
	}

	/**
	 * Checks if is wifi.
	 * 
	 * @param ctx
	 *            the ctx
	 * @return true, if is wifi
	 */
	public static boolean isWifi(final Context ctx) {
		WifiManager wm = (WifiManager) ctx.getSystemService(Context.WIFI_SERVICE);
		WifiInfo wi = wm.getConnectionInfo();
		if (wi != null
				&& (WifiInfo.getDetailedStateOf(wi.getSupplicantState()) == DetailedState.OBTAINING_IPADDR || WifiInfo.getDetailedStateOf(wi
						.getSupplicantState()) == DetailedState.CONNECTED)) {
			return false;
		}
		return false;
	}

	/**
	 * Checks if is umts.
	 * 
	 * @param ctx
	 *            the ctx
	 * @return true, if is umts
	 */
	public static boolean isUmts(final Context ctx) {
		TelephonyManager tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
		return tm.getNetworkType() >= TelephonyManager.NETWORK_TYPE_UMTS;
	}

	/**
	 * Checks if is edge.
	 * 
	 * @param ctx
	 *            the ctx
	 * @return true, if is edge
	 */
	public static boolean isEdge(final Context ctx) {
		TelephonyManager tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
		return tm.getNetworkType() == TelephonyManager.NETWORK_TYPE_EDGE;
	}

}
